We've all got regrets, and some of them involve the cars we didn't buy. They seemed expensive at the time, or weren't running, or our parents said no. And they're all worth kazillions now. Send me your sob stories, too.

The Chevy Volt and Nissan Leaf are two mainstream electric vehicles, with some similarities but also significant differences. If it's highway driving you're after, the Volt is for you. The Leaf will be a great commuter car, but you may need something else for backup.